Add 40/5 and 8/84, Solve 8 0/5 + 8/84 as a fraction

Add 40/5 and 8/84

1^st number: 8 0/5, 2^nd number: 8/84

40/5 + 8/84 is 170/21.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 5 × 84 = 420,
40/5 = 40 × 84/5 × 84 = 3360/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
8/84 = 8 × 5/84 × 5 = 40/420
Add the two like fractions:
3360/420 + 40/420 = 3360 + 40/420 = 3400/420
3400/420 simplified gives 170/21
So, 40/5 + 8/84 = 170/21
In mixed form: 82/21

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad